EP 1786214 A2 20070516 - Display device, signal processing circuit, program, and display method
Title (en)
Display device, signal processing circuit, program, and display method
Title (de)
Anzeigevorrichtung, Signalverarbeitungsschaltung, Programm und Anzeigeverfahren
Title (fr)
Dispositif d'affichage, circuit de traitement de signaux, programme et procédé d'affichage
Publication
Application
Priority
JP 2005329294 A 20051114
Abstract (en)
When a YUV signal is inputted to a signal processing circuit (32) from the outside, a histogram detection unit detects a histogram of a single frame of the Y signal, a correlation determination unit (35) determines a correlation between a gain and a level of an inputted Y signal on the basis of the histogram, and a YUV gain determination unit (37) determines the gain. A Y gain multiplication unit (33) and a UV gain multiplication unit (34) multiply each of the inputted Y signal, U signal, and V signal by the same gain to correct the YUV signal. A YUV/RGB conversion unit (28) converts the signal into an RGB signal, and outputs the result to a display element (23). In the display device, there is no change in color balance even when contrast correction and other nonlinear signal processing are performed.
IPC 8 full level
H04N 9/73 (2006.01); G09G 3/20 (2006.01); G09G 3/28 (2013.01); G09G 3/36 (2006.01); G09G 5/02 (2006.01); G09G 5/10 (2006.01); H04N 5/20 (2006.01); H04N 9/68 (2006.01)
CPC (source: EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
EP 1786214 A2 20070516; EP 1786214 A3 20081105; JP 2007142500 A 20070607; US 2007109317 A1 20070517
DOCDB simple family (application)
EP 06123954 A 20061113; JP 2005329294 A 20051114; US 59593506 A 20061113